Counting from zero.

• zerozero (0)
• batone (1)
• bitwo (2)
• hiruthree (3)
• laufour (4)
• bostfive (5)
• seisix (6)
• zazpiseven (7)
• zortzieight (8)
• bederatzinine (9)
• hamarten (10)
• hogeitwenty (20; Basque counts in twenties — a vigesimal system)
• berrogeita hamarfifty (50; literally 'two-twenties and ten')
• ehunone hundred (100)
• milaone thousand (1000)